Post traumatic soft tissue cyst - leg
Blunt trauma to anterior leg - 4 mths. C/o non-painful fluctuant swelling locally.
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There is anechoic collection in subcutaneous plane of proximal leg on anterior aspect. It is close of tibial contex; but does not abutt it. It is compressible. There is well-defined thin wall ( pseudo-capsule ) around lesion. There is no flow in wall. Collection shows a thin septa septa along with a fat lobule.
- Cranio-caudal -100 mm
- Transverse - 50 mm
- Antero-posterior - 15 mm
Ultrasound finding of subcutaneous soft tissue cyst in leg after blunt trauma. If morphologically similar lesion is seen involving greater tronchanteric region of thigh; it is labelled as Morel-Lavallée lesion.